Bose—Einstein Condensation and Spin Superfluidity of Magnons in a Perpendicularly Magnetized Yttrium Iron Garnet Film

被引：0
作者：
P. M. Vetoshko
G. A. Knyazev
A. N. Kuzmichev
A. A. Kholin
V. I. Belotelov
Yu. M. Bunkov
机构：
[1] Russian Quantum Center,
[2] Vernadsky Crimean Federal University,undefined
[3] Moscow State University,undefined
来源：
JETP Letters | 2020年 / 112卷
关键词：
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The formation of a Bose—Einstein condensate of magnons in a perpendicularly magnetized iron yttrium garnet film under radio-frequency pumping in a stripline has been studied experimentally. The characteristics of the nonlinear magnetic resonance and spatial distribution of the Bose—Einstein condensate of magnons in the gradient of a magnetic field have been analyzed. In these experiments, the system of bosonic magnons behaves in much the same way as the Bose—Einstein condensate of magnons in antiferromagnetic superfluid 3He-B, which was previously studied in detail. The Bose—Einstein condensate of magnons forms a coherently precessing state having the properties of magnon superfluidity. Its stability is determined by the repulsion potential between excited magnons, which compensates the inhomogeneity of the magnetic field.
引用
收藏
页码：299 / 304
页数：5
相关论文
共 143 条
  • [1] Arute F(2019)undefined Nature (London, U. K.) 574 505-undefined
  • [2] Arya K(2020)undefined J. Exp. Theor. Phys. 131 18-undefined
  • [3] Babbush R(1984)undefined JETP Lett. 40 1033-undefined
  • [4] Bunkov Y M(1984)undefined JETP Lett. 40 1037-undefined
  • [5] Borovik-Romanov A S(1985)undefined Sov. Phys. JETP 61 1199-undefined
  • [6] Bun’kov Y M(2008)undefined J. Low Temp. Phys. 153 266-undefined
  • [7] Dmitriev V V(1955)undefined Phys. Rev. 100 1788-undefined
  • [8] Mukharskii Y M(2009)undefined Phys. Rev. B 80 184422-undefined
  • [9] Fomin I A(1999)undefined IEEE Trans. Magn. 35 4511-undefined
  • [10] Borovik-Romanov A C(1940)undefined Phys. Rev. 58 1098-undefined
12345678910